GB1308484A - Continuous annealing process of cold reduced steel strip for drawing - Google Patents

Continuous annealing process of cold reduced steel strip for drawing

Info

Publication number
GB1308484A
GB1308484A GB5449970A GB5449970A GB1308484A GB 1308484 A GB1308484 A GB 1308484A GB 5449970 A GB5449970 A GB 5449970A GB 5449970 A GB5449970 A GB 5449970A GB 1308484 A GB1308484 A GB 1308484A
Authority
GB
United Kingdom
Prior art keywords
steel strip
annealing process
continuous annealing
reduced steel
cold reduced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5449970A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1308484A publication Critical patent/GB1308484A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0436—Cold rolling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

1308484 Annealing steel strip NIPPON KOKAN KK 16 Nov 1970 [14 Nov 1969 24 Dec 1969] 54499/70 Heading C7A Cold rolled strip containing not more than 0À08% C and not more that 0À003% soluble nitrogen is continuously annealed by heating to a temperature between A 1 and 800‹C, soaking, cooling to below 500‹C at more than 50‹C/sec. and holding between 300‹ and 500‹C for at least 10 seconds. The process is also applicable to steel containing not more that 0À08%C and 0À01-0À06% Al which has been coiled at not less than 630‹C after hot rolling.
GB5449970A 1969-11-14 1970-11-16 Continuous annealing process of cold reduced steel strip for drawing Expired GB1308484A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9076769 1969-11-14
JP10340869 1969-12-24

Publications (1)

Publication Number Publication Date
GB1308484A true GB1308484A (en) 1973-02-21

Family

ID=26432200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5449970A Expired GB1308484A (en) 1969-11-14 1970-11-16 Continuous annealing process of cold reduced steel strip for drawing

Country Status (6)

Country Link
CA (1) CA950337A (en)
DE (1) DE2056313B2 (en)
FR (1) FR2087775A5 (en)
GB (1) GB1308484A (en)
NL (1) NL155596B (en)
SE (1) SE368719B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959019A (en) * 1972-10-11 1974-06-07
DE2316324C2 (en) * 1972-04-03 1988-05-05 Nippon Steel Corp., Tokyo Process for the production of aging-resistant sheet steel
JPS5215046B2 (en) * 1972-06-22 1977-04-26
JPS5338691B2 (en) * 1972-12-28 1978-10-17
ZA782934B (en) * 1977-05-24 1979-05-30 Centre Rech Metallurgique Continuous heat-treatment for steel-strip
JPS5773132A (en) * 1980-10-24 1982-05-07 Nippon Kokan Kk <Nkk> Production of cold rolled mild steel plate of superior deep drawability and aging resistance by continuous annealing
JPS5827933A (en) * 1981-08-13 1983-02-18 Kawasaki Steel Corp Production of t-3 mild blackplate having excellent corrosion resistance by continuous annealing
BE905254A (en) * 1985-08-13 1986-12-01 Kawasaki Steel Co PROCESS AND APPARATUS FOR CONTINUOUS ANNUITMENT OF CARBON STEELS.

Also Published As

Publication number Publication date
NL155596B (en) 1978-01-16
CA950337A (en) 1974-07-02
DE2056313A1 (en) 1971-09-16
SE368719B (en) 1974-07-15
NL7016790A (en) 1971-05-18
FR2087775A5 (en) 1971-12-31
DE2056313B2 (en) 1972-11-09

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years